Home / 13,585.49-18,748.02-7,617.14

Finding the Fourth Proportional to 13,585.49, 18,748.02 and 7,617.14

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Solution

The fourth proportional to 13,585.49, 18,748.02 and 7,617.14 is: 10,511.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.49 : 18,748.02 = 7,617.14 : x
  2. Step 2: Convert to fraction form
    13,585.49/18,748.02 = 7,617.14/x
  3. Step 3: Cross multiply
    13,585.49x = 18,748.02 × 7,617.14
  4. Step 4: Simplify right side
    13,585.49x = 142,806,298.19
  5. Step 5: Solve for x
    x = 142,806,298.19/13,585.49
  6. Step 6: Final answer
    x = 10,511.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.